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- W2575490855 doi "https://doi.org/10.12677/aep.2012.21002" @default.
- W25754908551 hasURL "https://doi.org/10.12677/aep.2012.21002" @default.
- W24063956391 hasURL "https://doi.org/10.12677/aep.2012.21002" @default.
- W2575490855 oaUrl "https://doi.org/10.12677/aep.2012.21002" @default.
- W2406395639 oaUrl "https://doi.org/10.12677/aep.2012.21002" @default.
- W24063956391 pdfUrl "https://doi.org/10.12677/aep.2012.21002" @default.